Roman shade having shade cloth adjusting function

ABSTRACT

A roman shade includes a headrail, a plurality of juxtaposed shade cloths mounted on the headrail, at least one hanging cord extended from the headrail and connected to selective ones of the shade cloths, and at least one adjusting cord extended from the headrail and connected to selective ones of the shade cloths. Thus, the selective shade cloths connected by the adjusting cord are movable to overlap or partially overlap the selective shade cloths connected by the hanging cord, thereby forming a plurality of openings between the shade cloths to allow passage of the solar rays, thereby greatly enhancing the indoor lightness.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a roman shade, and more particularly to a roman shade having a shade cloth adjusting function.

2. Description of the Related Art

A conventional roman shade comprises a headrail, a shade cloth mounted on and extended from the headrail, and a lift cord extended through the shade cloth and secured to a bottom of the shade cloth to move the shade cloth upward and downward. Thus, the shade cloth is lifted and folded by the lift cord to allow passage of the solar rays and is lowered and expanded to provide a shade effect. However, when the shade cloth is fully expanded, the solar rays cannot penetrate the shade cloth so that the indoor light is too weak, and when the shade cloth is fully folded, the solar rays are directly ejected into the indoor so that the indoor light is too strong.

SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a roman shade, comprising a headrail, a plurality of juxtaposed shade cloths mounted on the headrail, at least one hanging cord extended from the headrail and connected to selective ones of the shade cloths, and at least one adjusting cord extended from the headrail and connected to selective ones of the shade cloths.

The primary objective of the present invention is to provide a roman shade having a shade cloth adjusting function.

Another objective of the present invention is to provide a roman shade, wherein the selective shade cloths connected by the adjusting cord are movable to overlap or partially overlap the selective shade cloths connected by the hanging cord, thereby forming a plurality of openings between the shade cloths to allow passage of the solar rays, thereby greatly enhancing the indoor lightness.

A further objective of the present invention is to provide a roman shade, wherein each of the openings between the shade cloths has an adjustable distance that is adjusted by movement of the adjusting cord so as to adjust the optical permeability of the shade cloths and to change the outer appearance of the shade cloths.

Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a roman shade in accordance with the preferred embodiment of the present invention;

FIG. 2 is an exploded perspective view of the roman shade as shown in FIG. 1;

FIG. 3 is a partially plan assembly view of the roman shade as shown in FIG. 2;

FIG. 4 is a schematic operational view of the roman shade as shown in FIG. 1 in use, wherein the adjusting cord is pulled;

FIG. 5 is a schematic operational view of the roman shade as shown in FIG. 1 in use, wherein the adjusting cord is loosened;

FIG. 6 is a perspective view of a roman shade in accordance with another preferred embodiment of the present invention;

FIG. 7 is a schematic operational view of the roman shade as shown in FIG. 6 in use;

FIG. 8 is a perspective view of a roman shade in accordance with another preferred embodiment of the present invention;

FIG. 9 is a plan view of a roman shade in accordance with another preferred embodiment of the present invention;

FIG. 10 is a schematic perspective operational view of the roman shade as shown in FIG. 9 in use;

FIG. 11 is a perspective view of a roman shade in accordance with another preferred embodiment of the present invention; and

FIG. 12 is a perspective view of a roman shade in accordance with another preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIGS. 1-3, a roman shade in accordance with the preferred embodiment of the present invention comprises a headrail 1, a plurality of juxtaposed shade cloths 11 mounted on the headrail 1, at least one hanging cord 2 extended from the headrail 1 and connected to selective ones of the shade cloths 11, at least one adjusting cord 3 extended from the headrail 1 and connected to selective ones of the shade cloths 11, and at least one lift cord 4 extended through each of the shade cloths 11 and secured to a lowermost one of the shade cloths 11 to move the shade cloths 11 upward and downward.

The selective shade cloths 11 connected by the hanging cord 2 and the selective shade cloths 11 connected by the adjusting cord 3 are arranged in a staggered manner. In addition, the adjusting cord 3 is movable relative to the hanging cord 2 to adjust a distance between the adjusting cord 3 and the hanging cord 2. Thus, the selective shade cloths 11 connected by the adjusting cord 3 are driven by the adjusting cord 3 to move relative to the selective shade cloths 11 connected by the hanging cord 2 so as to adjust a distance between the selective shade cloths 11 connected by the adjusting cord 3 and the selective shade cloths 11 connected by the hanging cord 2.

Each of the shade cloths 11 is provided with at least one snap ring 12 to allow passage of the hanging cord 2, the adjusting cord 3 and the lift cord 4. The adjusting cord 3 is positioned by an adjusting cord lock 31 to control movement of the adjusting cord 3. The lift cord 4 is extended from the headrail 1 and is positioned by a lift cord lock 41 to control movement of the lift cord 4. The lift cord 4 has a distal end secured to the snap ring 12 of the lowermost one of the shade cloths 11 to move all of the shade cloths 11 upward and downward.

Thus, the lift cord 4 is used to move all of the shade cloths 11 upward and downward to control movement of all of the shade cloths 11I, and the adjusting cord 3 is movable relative to the hanging cord 2 so that the selective shade cloths 11 connected by the adjusting cord 3 are driven by the adjusting cord 3 to move relative to the selective shade cloths 11 connected by the hanging cord 2 so as to adjust the distance between the selective shade cloths 11 connected by the adjusting cord 3 and the selective shade cloths 11 connected by the hanging cord 2.

In operation, the lift cord 4 is extended through the snap rings 12 of all of the shade cloths 1 1 and has a distal end secured to the snap ring 12 of the lowermost one of the shade cloths 11 so that when the lift cord 4 is pulled upward, the lowermost one of the shade cloths 11 is lifted to push the other shade cloths 11 to move upward, thereby folding all of the shade cloths 11 by pulling the lift cord 4. At this time, when the lift cord 4 stops moving, the lift cord 4 is positioned by the lift cord lock 41 immediately. Alternatively, all of the shade cloths 11 are expanded by releasing the lift cord 4.

Referring to FIGS. 4 and 5, when the adjusting cord 3 is pulled upward, the adjusting cord 3 is movable upward relative to the hanging cord 2 so that the selective shade cloths 11 connected by the adjusting cord 3 are driven by the adjusting cord 3 to move upward relative to the selective shade cloths 11 connected by the hanging cord 2. In such a manner, the selective shade cloths 11 connected by the adjusting cord 3 are movable to overlap the selective shade cloths 11 connected by the hanging cord 2, thereby forming a plurality of openings 110 between the shade cloths 11 to allow passage of the solar rays.

Accordingly, the selective shade cloths 11 connected by the adjusting cord 3 are movable to overlap or partially overlap the selective shade cloths 11 connected by the hanging cord 2, thereby forming a plurality of openings 110 between the shade cloths 11 to allow passage of the solar rays, thereby greatly enhancing the indoor lightness. In addition, each of the openings 110 between the shade cloths 11 has an adjustable distance that is adjusted by movement of the adjusting cord 3 so as to adjust the optical permeability of the shade cloths 11 and to change the outer appearance of the shade cloths 11.

Referring to FIGS. 6 and 7, the roman shade further comprises at least one secondary adjusting cord 301 extended from the headrail 1 and connected to selective ones of the shade cloths 11. The secondary adjusting cord 301 is positioned by an adjusting cord lock 311 to control movement of the secondary adjusting cord 301. Thus, the selective shade cloths 11 connected by the secondary adjusting cord 301 are movable relative to the selective shade cloths 11 connected by the hanging cord 2 and the selective shade cloths 11 connected by the adjusting cord 3 to overlap or partially overlap the selective shade cloths 11 connected by the hanging cord 2 and the selective shade cloths 11 connected by the adjusting cord 3.

Referring to FIG. 8, the roman shade further comprises a motorized winding mechanism 30 mounted on the headrail 1 and connected to the adjusting cord 3 to wind and scroll the adjusting cord 3, and a motorized winding mechanism 40 mounted on the headrail 1 and connected to the lift cord 4 to wind and scroll the lift cord 4.

Referring to FIGS. 9 and 10, the shade cloths 11 are divided into a plurality of independent zones which are connected by the hanging cord 2 and the adjusting cord 3 respectively and are arranged in a staggered manner. In addition, the roman shade further comprises at least one local-zone lift cord 401 extended through selective ones of the shade cloths 11 and secured to a lowermost one of the selective shade cloths 11 to move the selective shade cloths 11 upward and downward. Preferably, the selective shade cloths 11 connected by the local-zone lift cord 401 are located at a mediate portion of all of the shade cloths 11 as shown in FIG. 10 so that the shade cloths 11 have the optimum optical permeability. The local-zone lift cord 401 is extended from the headrail 1 and is positioned by a lock 411 to control movement of the local-zone lift cord 401.

Referring to FIG. 11, the roman shade further comprises a motorized winding mechanism 402 mounted on the headrail 1 and connected to the local-zone lift cord 401 to wind and scroll the local-zone lift cord 401.

Referring to FIG. 12, the roman shade comprises three shade cloths 11, wherein the mediate shade cloth 11 is lifted to overlap the upper shade cloth 11, so that the mediate zone of the shade cloths 11 is formed with an opening.

Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention. 

1. A roman shade, comprising: a headrail; a plurality of juxtaposed shade cloths mounted on the headrail; at least one hanging cord extended from the headrail and connected to selective ones of the shade cloths; at least one adjusting cord extended from the headrail and connected to selective ones of the shade cloths.
 2. The roman shade in accordance with claim 1, wherein the selective shade cloths connected by the hanging cord and the selective shade cloths connected by the adjusting cord are arranged in a staggered manner.
 3. The roman shade in accordance with claim 1, wherein the adjusting cord is movable relative to the hanging cord to adjust a distance between the adjusting cord and the hanging cord.
 4. The roman shade in accordance with claim 3, wherein the selective shade cloths connected by the adjusting cord are driven by the adjusting cord to move relative to the selective shade cloths connected by the hanging cord so as to adjust a distance between the selective shade cloths connected by the adjusting cord and the selective shade cloths connected by the hanging cord.
 5. The roman shade in accordance with claim 1, further comprising at least one lift cord extended through each of the shade cloths and secured to a lowermost one of the shade cloths to move the shade cloths upward and downward.
 6. The roman shade in accordance with claim 5, wherein each of the shade cloths is provided with at least one snap ring to allow passage of the hanging cord, the adjusting cord and the lift cord.
 7. The roman shade in accordance with claim 1, wherein the adjusting cord is positioned by an adjusting cord lock to control movement of the adjusting cord.
 8. The roman shade in accordance with claim 1, wherein the selective shade cloths connected by the adjusting cord are movable to overlap or partially overlap the selective shade cloths connected by the hanging cord, thereby forming a plurality of openings between the shade cloths.
 9. The roman shade in accordance with claim 8, wherein each of the openings between the shade cloths has an adjustable distance that is adjusted by movement of the adjusting cord so as to adjust an optical permeability of the shade cloths and to change an outer appearance of the shade cloths.
 10. The roman shade in accordance with claim 1, further comprising at least one secondary adjusting cord extended from the headrail and connected to selective ones of the shade cloths.
 11. The roman shade in accordance with claim 10, wherein the selective shade cloths connected by the secondary adjusting cord are movable relative to the selective shade cloths connected by the hanging cord and the selective shade cloths connected by the adjusting cord to overlap or partially overlap the selective shade cloths connected by the hanging cord and the selective shade cloths connected by the adjusting cord.
 12. The roman shade in accordance with claim 10, wherein the secondary adjusting cord is positioned by an adjusting cord lock to control movement of the secondary adjusting cord.
 13. The roman shade in accordance with claim 1, further comprising a motorized winding mechanism mounted on the headrail and connected to the adjusting cord to wind and scroll the adjusting cord.
 14. The roman shade in accordance with claim 5, further comprising a motorized winding mechanism mounted on the headrail and connected to the lift cord to wind and scroll the lift cord.
 15. The roman shade in accordance with claim 1, further comprising at least one local-zone lift cord extended through selective ones of the shade cloths and secured to a lowermost one of the selective shade cloths to move the selective shade cloths upward and downward.
 16. The roman shade in accordance with claim 15, wherein the selective shade cloths connected by the local-zone lift cord are located at a mediate portion of all of the shade cloths so that the shade cloths have the optimum optical permeability.
 17. The roman shade in accordance with claim 15, wherein the local-zone lift cord is extended from the headrail and is positioned by a lock to control movement of the local-zone lift cord.
 18. The roman shade in accordance with claim 15, wherein the further comprising a motorized winding mechanism mounted on the headrail and connected to the local-zone lift cord to wind, and scroll the local-zone lift cord.
 19. The roman shade in accordance with claim 1, wherein the shade cloths are divided into a plurality of independent zones which are connected by the hanging cord and the adjusting cord respectively and are arranged in a staggered manner.
 20. The roman shade in accordance with claim 1, wherein the roman shade comprises a plurality of adjusting cords each connected to selective ones of the shade cloths, so that the selective shade cloths connected by the respective adjusting cords are displaced relative to each other. 